Shock absorber



M 8 1924. 3.5mm

G. R. LE MAIRE SHOCK ABSORBER Filed Fe 19. 1923 2 Sheets-Sheet 1 I go /6 I v A5 Gepzye 1? leMazra INVENTOR WITNESS ATTORNEY side and the ends of the base.

.Ieaaai any a, rear.

users stares enema aonm'r LE MAIRE, or CENTRAL'CITY, xnirruc.

SHOCK ABSORBER.

Application filed February 19, 1923. SerialNo. 620,021.

To all whom it may concern:

Be it known that I, GEORGE ROBERT Ln MAIRE, a citizen of the United States, residing at Central City, in the county of Muhlenberg and State of Kentucky, have invented new and useful Improvements in Shock Absorbers, of which the following is a specification.

The object of this invention is to produce a shock absorbing means for vehicles by the use of which both the shock and the rebound of the springs after the shock is eifectively absorbed. g A further object is to produce a fluid controlled shock absorbing means for vehicles -that shall be simple in construction, readily applied and which will perform its functionswith ease and with accuracy.

To the attainment of the foregoing and other objects which will presentv themselves as the nature of the invention is better understood, reference is to be had to the drawings which accompany and which form part of this application.

In the drawings .Figure 1 is a side elevation of a suflicient portion of a vehicle to illustrate the application of the improvement thereon.

Figure 2 is a sectional view approximately on the line 22 of Figure 1, on an enlarged scale.

Figure 3 is a sectional View on the line 3-3 of Figure 2. I

Figure 4 is an end view of the casing of the improvement.

Referring now to the drawings in detail, I

the numeral 1 designates one of the side bars of the frame of an automobile or similar vehicle, and 2 a leaf spring connected'to the bar 1 and to which the axle?) is secured.

It is to be understood that a shock absorber in accordance with my invention is to be attached to the frontand rear, axles of the machine to the sides ofthe springs to which the axles are connected.

Each section of the casing 4 includes an outer straight face, a flat base and. an upwardly arched connecting wall betweeen the The casing sections havetheir confrontingwalls provided with interengaging portions, as clearly disclosed by the drawings, and the said sections areprovided with ears designed to align whereby securing elements may pass for holding the sections connected. Between the interengaging portions of the casing secsame is rounded to snuglycontact with the rounded inner wall of thecasing- The top of the member 8 is provided with an opening whereby an oil or similar fluid whose level .is indicated in the drawings by the numeral 9, may be received therein. The bottom of the member 8 is in the nature of a cross sectionally rounded block 10, the ends of which being provided with reduced trunnion's 11 and 12 which find bearings inthe opposed walls of the casing 4. The portion 10 of the member 8 is in reality in the nature of a solid hub and will, for the sake of convenience, be so referred to. The hub 10, from one face of the member 8 is formed with a substantially V-shaped groove 13 extending from one of its sides and gradually deepening and terminatingin a shoulder 14 arranged at the base but near the opposite side of the said member 8. From the shoulder the hub 10 is formed with a similar groove .15, which, however, is of a less depth than the groove 13, the groove 15 terminating-in a line with one side or face of the impeller member 8. I 1

The hub finds a bearing on .a block 16 arranged and secured centrally on the base a of the casing 5, and passing through the bottom of the casing and through said hub there is a threaded element 16 having a pointed end 17 to be received in either of the grooves 18 or 15.. The element 16 has screwed thereon a nut 18,for regulating the position of its pointed end in the grooves of thehub 10. g

The casing. 4 is centrally provided on its top with a fluid v.inlet opening that is nor-' mally closed by 5. removable plug 19..

Secured onthe trunnion 16 that passes through its bearing opening in the outer wall of the casing 4, or integrally formed therewith when'a shaft is keyed in the hub 10, when the latter is bored there is e sleeve 20 that has peripheralgrooves, the trunnion 12 having the end thereof project ing beyond the sleeve threaded, as at 21.

The sleeve 20 is received through the ribbed bore 22 of a link 23. l/Vhen the link is so positioned there is screwed on the threaded end 21 of the shaft or trunnion 12 a nut, suitable means, such as a cotter pin passing through a suitable opening in the said portion 23 to contact with the nut to prevent the unscrewing thereof.

To the outer end of the link 23 there is pivotally connected an arm 24, the said arm aving its lower end pivoted or otherwise loosely connected with the threaded shank in Figure 3 of the drawin s the member 8- is in normal position, an for distinction the parts ofthe casing to the opposite sides of the member 8 provide compartments which are indicated by the characters A and B respectively. When the car meets with an obstruction the member 8 moves upwardly in the casing-from the compartment B into the compartment A, and as the link 23 is connected directly to the member 8 the same will be also moved, forcing the oil from the compartment A into the compartment B, through the V-shaped passage in the bottom of the hub 10 of the member 8. The greater the. swing of the link, the greater the reduction in the size of the pasi sage 13 between the compartments A and B so that shock in this direction will be absorbed. On the down stroke of the arm 24 the member is returned to initial position,

forcing the oil from the com artment B through the comparatively smal passage 15 into the compartment A so that the rebound shock is also effectively compensated for.

The. improvement is of a simple nature, may be readily attached to an ordinary vehicle spring, and the construction and operation will, it is believed, be apparent from the foregoing description. It is to be stated, however, that I do not wish to be restricted to the precise structural details herein set forth but hold myself entitled to all such changes therefrom as fall withinthe scope of what I claim.

Having described the claim The combination with a vehicle frame and a spring supported wheel carrying axle thereon, of a shock absorber including a casing having a flat base and a rounded top secured to the frame, a block having an upper hollow face arranged centrally on the base of the casing, a hollow blade in the casing in contact with the side and top walls thereof, a hub on the blade restin in the concaved face of the block and aving trunnions journaled one in the side and one through the opposite side of the casing, normally closed means for admitting a fluid into the casing to the opposite sides of the blade, spaced grooves on the hub to establish fluid communications in the casing to either side of the blade when the blade is moved to certain positions and to prevent such passage of fluid when the blade is in another position, means adjustable on the block and entering one of the groovesfor regulating the passage of fluid through said grooves, and means carried by the axle and connected to the projecting trunnion of the blade for swinging the blade when the axle is subjected to vertical movement by shocks or Jars.

In testimony whereof I afiix my signature.

GEORGE ROBERT LE MAIRE.

invention, I 

